at the tiptop of sth
用于指出某物最顶端的位置，常与 mast、tower、tree 等具体事物搭配。
A small flag was flying at the tiptop of the mast.
一面小旗在桅杆的最顶端飘扬。
最高程度；最佳；极品；最顶端；最高程度；最好的事物；绝顶
The very topmost point of something.
最顶端
The very topmost point.
最高程度；最好的事物
The highest or utmost degree; the best of anything.
We reached the tiptop of the hill just before sunset.
我们在日落前到达了山顶。
用法提示：tiptop 作名词，意为‘最顶端’，此处指山的最高点。
The tiptop of the pine tree swayed wildly in the storm.
暴风中松树的树梢剧烈摇摆。
用法提示：tiptop 作名词，表示‘顶端’，此处作为主语指树梢。
A small flag was placed at the tiptop of the sandcastle.
一面小旗被插在沙堡的顶端。
用法提示：tiptop 作名词，表示‘最高处’，与 at the ... of 搭配使用。
用于指出某物最顶端的位置，常与 mast、tower、tree 等具体事物搭配。
A small flag was flying at the tiptop of the mast.
一面小旗在桅杆的最顶端飘扬。
强调经过努力抵达最高处，多与 climb、reach 等表示移动的动词连用。
It took them six hours to reach the tiptop of the hill.
他们花了六个小时才到达山丘的最顶端。
可作句子主语或宾语，指某一物体的最高点，语气比 top 更强调“最尽头”。
The tiptop of the tower was hidden in the clouds.
塔的最顶端隐没在云中。
复数形式 tiptops 用于同时指多个物体的最高处。
The tiptops of the trees were white with snow.
那些树的最顶端被雪覆盖成白色。
grammar · medium
易错句子He left a tiptop on the table for the waiter.
正确表达He left a tip on the table for the waiter.
tiptop 意为“顶点；最高点”，不能表示“小费”；“小费”用可数名词 tip。
grammar · medium
易错句子She is in the tiptop of her career.
正确表达She is at the tiptop of her career.
表示处于某事物的顶点或最高程度时，介词用 at；in 表示在内部，不用于此义。
grammar · medium
易错句子He reached a tiptop of his career.
正确表达He reached the tiptop of his career.
tiptop 表示特定事物的最高点时，是特指，需用定冠词 the；不用不定冠词 a。
top 泛指物体或位置的顶部，适用范围很广；tiptop 强调“最顶端、极点”，现代英语中较少使用，且常带口语或夸张色彩。
peak 常指山峰的尖顶，或水平、数值的最高点，也可作动词；tiptop 侧重位置上的“最顶端”，不用于曲线或数据的峰值。
tip 指细长物体的末端或尖端，强调“尖”而非“最高”；tiptop 指最顶端或最高程度，二者仅在“端点”概念上部分重叠。
top + -most
hill + top
tree + top
finger + tip
tip + toe
table + top
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